#include <stdio.h>
#include <math.h>

int n;
double x[1000], y[1000], r[1000];
int top[1000];

int possible = 1;
double ne = 1000, nw = 1000;

main(){
   int i,j,k;
   scanf("%d",&n);
   for (i=0;i<n;i++) scanf("%lf%lf%lf",&x[i],&y[i],&r[i]);
   for (i=0;i<n;i++) if (y[i]+r[i] > 1000) visit(i);
   if (possible) printf(
     "Bill enters at (0.00, %0.2lf) and leaves at (1000.00, %0.2lf).\n",nw,ne);
   else printf("Bill will be bitten.\n");
}

visit(int i){
   int j,k;
   double yy;
   if (top[i]++) return;

   for (j=0;j<n;j++) {
      if (hypot(x[j]-x[i],y[j]-y[i]) < r[i]+r[j]) visit(j);
   }
   if (y[i]-r[i] < 0) possible = 0;
   if (x[i]-r[i] < 0) {
      yy = y[i] - sqrt(r[i]*r[i] - x[i]*x[i]);
      if (yy < nw) nw = yy;
   }
   if (x[i]+r[i] > 1000) {
      yy = y[i] - sqrt(r[i]*r[i] - (1000-x[i])*(1000-x[i]));
      if (yy < ne) ne = yy;
   }
}